The ascorbic acid concentration in the posterior and anterior chambers of the rhesus monkey (Macaca mulatta) eye was determined, and found to be significantly higher in the posterior chamber. Monkeys anesthetized with pentobarbital sodium had a higher posterior chamber ascorbic acid concentration than monkeys sedated with phencyclidine. The ascorbic acid diffusion coefficient, calculated from t...

abstract effect of different concentrations of salicylic acid on postharvest life of kiwifruit (actinidia deliciosa) cultivar hayward at 0 ±.5 °c and 90-95% rh was studied. fruits were treated with salicylic acid (0, 1 and 2 mmol/l-1) and stored at 0±.5°c for 16 weeks. fruit quality attributes assessment including firmness, total acidity, soluble solid content, ascorbic acid, antioxidant activi...

Sahinduran S. , M. K. Albay: Supplemental Ascorbic Acid and Prevention of Neonatal Calf Diarrhoea. Acta vet. Brno 2004, 73: 221-224. The experiment evaluated the influence of ascorbic acid on the prevention of neonatal calf diarrhoea. Thirty-five Holstein newborn calves were used in the experiment. Ascorbic acid was administered orally to the trial group calves (n = 25) as follows: three times ...

Ascorbic acid was measured in 125 plasma samples by an automated colorimetric method involving dichlorophenolindophenol and by a "high-performance" liquid-chromatographic procedure with electrochemical detection. The two methods gave comparable results for samples with ascorbate concentrations of 1 to 20 mg/L (r = 0.97). We also measured the amount of total ascorbate (ascorbic acid + dehydroasc...

The conversion of glucose-l-Cl4 to ascorbic acid-6-Cl4 and uniformly labeled glucose-Cl4 to uniformly labeled ascorbic acid-Cl4 in the Chloretonestimulated albino rat has been demonstrated (1, 2). To provide further evidence for a direct conversion of glucose to ascorbic acid and to eliminate pathways similar to that suggested by Bidder (3) for glucuronic acid formation, glucose-6-Cl4 has been ...

The suppressive effect of L-ascorbic acid on the growth of bone marrow cells from patients with acute nonlymphocytic leukemia was studied using a modified agar culture method featuring daily feeding to allow the growth of leukemic cell colonies. In seven of 28 patients (25%), the numbers of leukemic cell colonies grown in culture were reduced to 21% of control by the addition of L-ascorbic acid...

previous studies had reported that extracellular levels of ascorbic acid have modulatory effects on dopamine receptors. both ascorbic acid and dopamine receptor have an important role in learning and memory processes. however, the central interaction between ascorbic acid and dopamine d2 receptor on spatial learning and memory has not yet been elucidated. all experiments were carried out on mal...

There have been numerous reports suggesting that the metabolism of ascorbic acid in humans and in animals is affected by stress.l However, detailed information which would permit an analysis of the underlying mechanism is not available. From the variety of effects cited, it would appear that no single mechanism can explain all of the findings. It has been suggested that increased ascorbic acid ...

ABSTRACT: The history of food science, technology and nutrition and their expansion in respect of raw material, processing, finished products and nutritional value goes back to many years and is still the interests of many researchers. In this work ascorbic acid has been taken not only as an important and vital vitamin to be investigated during the course of different heat processes but also as...